C30-600-KM-OH30-600-H bearing: complete specifications & equivalents
The C30-600-KM-OH30-600-H is a ISO 15 radial bearing sized 560 x 870 x 200 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 560 mm |
| Outer diameter D | 870 mm |
| Width B | 200 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 6300 kN |
| Basic static load rating C0 | 12200 kN |
| Fatigue load limit Pu | 780 kN |
| Reference speed (thermal) | 500 rpm |
| Limiting speed (mechanical) | 700 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 520000 g |
| Manufacturer designation | SKF C 30/600 KM + OH 30/600 H |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.2-10.3 CARB on sleeves |
| Last verified | 2026-09-29 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.2-10.3 CARB on sleeves) · extracted 2026-09-29
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.2-10.3 CARB on sleeves); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.
Dimensions in inches & carb-adapter-sleeve range
| Bore d | 22.047 in |
|---|---|
| Outer diameter D | 34.252 in |
| Width B | 7.874 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 155 mm |
| Smallest bore in carb-adapter-sleeve | 25 mm |
| Largest outer diameter in carb-adapter-sleeve | 1580 mm |
| Width range across carb-adapter-sleeve | 20–462 mm |
| Bore position in carb-adapter-sleeve (smallest first) | 42 of 51 |
| Bore above smallest carb-adapter-sleeve size | 535 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C30 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the C30-600-KM-OH30-600-H model number is decoded
Ordering C30-600-KM-OH30-600-H buys one matched assembly — CARB bearing C 30/600 KM on withdrawal sleeve OH 30/600 H — rather than a bearing and a sleeve ordered separately for a 560 mm shaft.The code breaks into bearing C 30/600 KM and withdrawal sleeve OH 30/600 H: C marks the CARB type, the digit group the 600 mm bore size, the following letters the cage/tolerance execution, and the sleeve designation its own SKF number — sleeve and bearing are keyed to each other and must be ordered as the pair C30-600-KM-OH30-600-H. What the H execution changes: an adapter sleeve clamps the 600 mm tapered bore onto a plain 560 mm shaft, so the housing-side location work happens at the sleeve locknut — no machined shaft shoulder is needed at the bearing seat. The C0/C balance of about 1.94 shows the non-locating CARB character: heavy radial capacity with tolerance of misalignment and axial float — the withdrawal sleeve adds the plain-shaft mounting ability, not thrust capability. Mounting C30-600-KM-OH30-600-H: clean the 560 mm seat, slip on sleeve+bearing as one unit, seat against the housing bore 870 mm H7, then drive the withdrawal sleeve up its cone in small steps, checking radial internal clearance after each step until the catalogue residual clearance for the K bore is reached. Housing side of C30-600-KM-OH30-600-H is conventional: a 870 mm H7 bore takes the CARB outer ring, which is free to slide axially in the housing — the toroidal raceway handles the misalignment and the sleeve side handles the location on the 560 mm shaft.
Typical equipment & failure modes
Common applications
- continuous-caster guide rolls and slab-caster segments under heat growth
- vibrating screen exciters fitted with the VE240 tolerance execution
- long fan and kiln main shafts where the free end must float without thrust load
- continuous-caster guide rolls and slab-caster segments under heat growth
Known failure patterns
- misalignment edge loading when the housing bore is out of square with the shaft seat
- fretting corrosion at the shaft-sleeve interface under vibration with an undersized seat
- overheating from a preload set at mounting when sleeve travel overshot the catalogue clearance
- sleeve creep on the shaft seat when the sleeve was not driven to its marked travel or clearance
- fretting corrosion at the shaft-sleeve interface under vibration with an undersized seat
Selection pitfalls — read before you substitute
- Protect the 560 mm seat: sleeve bore corrosion or seat ovality shows up later as sleeve creep and fretting; inspect and measure the seat at every dismounting of C30-600-KM-OH30-600-H.
- Never set C30-600-KM-OH30-600-H by locknut torque or "feel": the withdrawal sleeve travel defines the clearance of the 600 mm CARB bearing — measure residual radial clearance during mounting, in steps.
- Keep the pair complete in stores: storing bearing C 30/600 KM and sleeve OH 30/600 H on different shelves is how taper-mismatch accidents start — store the unit as received under one part number.
- The 6300/12200 kN ratings are SKF catalogue 17000 values for the CARB bearing; SKF can revise internal geometry without changing the order number, so keep the catalogue version (PUB BU/P1 17000/1 EN, 2018) with the specification.
- Quote the full unit designation SKF C 30/600 KM + OH 30/600 H when purchasing — bearing and sleeve execution letters are part of the order number and define the matched taper pair.
Frequently asked questions
What are the dimensions and catalogue data of C30-600-KM-OH30-600-H?
The unit is CARB bearing C 30/600 KM on withdrawal sleeve OH 30/600 H, fitting a 560 mm shaft (22.047 in), housing bore 870 mm, bearing width 200 mm. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 6300 kN, C0 12200 kN, fatigue load limit Pu 780 kN, combined mass about 520.0 kg. Reference speed 500 r/min, limiting speed 700 r/min (bearing values).
Why does C30-600-KM-OH30-600-H list a 560 mm shaft size when the bearing bore is 600 mm?
The sleeve takes up the difference: the withdrawal sleeve OH 30/600 H has a tapered outside that engages the bearing's 600 mm tapered bore and a cylindrical bore that seats on the 560 mm shaft. The catalogue's principal dimensions describe the mounted result — shaft seat, housing bore and bearing width — not the bearing bore alone.
Is C30-600-KM-OH30-600-H a locating or non-locating bearing?
Non-locating. The CARB toroidal roller bearing is designed as the free end of the shaft: its raceway geometry tolerates misalignment and allows axial float, while a separate locating bearing (typically a spherical roller or paired taper) takes the thrust. The sleeve does not change this function.
Can I buy the bearing C 30/600 KM and the sleeve OH 30/600 H separately?
The components are catalogued separately, but the taper pair is matched — the sleeve seat and the bearing bore are manufactured to the same execution. Ordering the unit C30-600-KM-OH30-600-H as one catalogue line keeps bearing and sleeve compatible; if ordering separately, quote both full designations including execution letters.
How is the clearance of C30-600-KM-OH30-600-H set at mounting?
By driving the adapter sleeve up its conical seat: the sleeve expands on the 560 mm shaft and onto the bearing bore, reducing the radial internal clearance. Mount in steps and measure residual clearance until it reaches the catalogue value for the K bore — never set it by nut torque alone.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.2-10.3 CARB on sleeves on 2026-09-29. Read our editorial & correction policy.